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Is t^(1/2) an even integer? (1) t is equal to m^2. (2) m is an even in

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Joined: 02 Sep 2009
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Is t^(1/2) an even integer? (1) t is equal to m^2. (2) m is an even in  [#permalink]

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New post 10 Dec 2017, 01:09
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  25% (medium)

Question Stats:

88% (00:27) correct 12% (00:00) wrong based on 17 sessions

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Re: Is t^(1/2) an even integer? (1) t is equal to m^2. (2) m is an even in  [#permalink]

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New post 10 Dec 2017, 03:46
Bunuel wrote:
Is \(\sqrt{t}\) an even integer?

(1) t is equal to m^2.
(2) m is an even integer.


Statement 1: \(t=m^2 => \sqrt{t}=\sqrt{m^2}\). Nothing given about \(m\). Insufficient

Statement 2: nothing given about \(t\). Insufficient

Combining 1 & 2, as \(m\) is even so \(m^2\) is even, hence \(\sqrt{t}\)=even. Sufficient

Option C
Re: Is t^(1/2) an even integer? (1) t is equal to m^2. (2) m is an even in &nbs [#permalink] 10 Dec 2017, 03:46
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